Senior Software Engineer – Public Sector Apps (C#, REST, SQL)

NEWTONE SERVICES PTE. LTD.; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

NEWTONE SERVICES PTE. LTD. in Singapore is seeking an experienced Software Engineer to develop, integrate, and support mission-critical applications.

You will work on enterprise systems using C# .NET, MSSQL, REST APIs, and Power BI to ensure secure, reliable, and high-performance solutions. Key responsibilities include designing and maintaining applications, building Power BI dashboards, optimizing SQL queries, and integrating with Azure cloud services.

Qualifications

• 5+ years of software development experience in enterprise or mission-critical systems.
• Strong hands-on experience in C# .NET / .NET Core / .NET Framework development.
• Experience with Microsoft SQL Server, T-SQL, stored procedures, and performance tuning.
• Experience with REST APIs, JSON/XML, and system integration.
• Experience with Microsoft Azure cloud services and API integrations.
• Familiarity with public sector security, governance, and compliance requirements.

Responsibilities

• Design, develop, and maintain applications using C# .NET / .NET Core and RESTful APIs.
• Develop and maintain Power BI dashboards, data models, and reporting solutions.
• Write and optimize MSSQL queries, stored procedures, and database integrations.
• Integrate applications with external systems, APIs, and Microsoft Azure cloud services.
• Configure and customize enterprise applications and business rules to support operational workflows.
• Participate in FAT, UAT, system integration testing, and production deployments.
• Troubleshoot application issues, perform root cause analysis, and support production operations.
• Collaborate with project teams and stakeholders to ensure secure, reliable software delivery.

Skills

C# .NET

Power BI

REST APIs

Azure

SQL Server

CI/CD

DevOps

Agile

Testing

Tools

Power BI

Job description

NEWTONE SERVICES PTE. LTD. in Singapore is seeking an experienced Software Engineer to develop, integrate, and support mission-critical applications.

You will work on enterprise systems using C# .NET, MSSQL, REST APIs, and Power BI to ensure secure, reliable, and high-performance solutions. Key responsibilities include designing and maintaining applications, building Power BI dashboards, optimizing SQL queries, and integrating with Azure cloud services.